須要實現以下效果
通常ERP中，訂單數據都分爲彙總信息與明細信息，而後在查詢的時候一次性從後臺查詢多條訂單json數據，並將彙總信息展現到表格中。可是明細信息也是用戶須要關注的，好比用戶可能會想知道某個訂單裏面具體包含哪些商品，下單數量分別是多少。這時候就須要可以點擊具體彙總信息行數據的時候，在下方展現出對應的明細數據。 
javascript
實現要點
一、主表格綁定 @expand-change 事件
<el-table v-loading="loading" :data="data" size="small" border style="width: 100%;" @expand-change="rowExpand">
二、增長展開列，並在展開列中再加一個table（做爲子表）
<el-table-column type="expand" prop="">
<template slot-scope="">
<el-table :data="orderDetailData">
<el-table-column label="訂單編號" prop="orderId"/>
<el-table-column label="商品名稱" prop="skuName"/>
<el-table-column label="購買數量" prop="purchaseNum"/>
<el-table-column label="價格" prop="skuPrice"/>
<el-table-column label="商品編碼" prop="venderSku"/>
<el-table-column label="單品優惠" prop="discount"/>
</el-table>
</template>
</el-table-column>
三、methods中增長rowExpand方法具體實現
rowExpand(row, expandeRows) {
console.log('點開了' + row.orderId)
console.log(row.orderDetails)
const _this = this
_this.orderDetailData = row.orderDetails
}
完整代碼以下
<template>
<div class="app-container">
<eHeader :query="query"/>
<!--表格渲染-->
<el-table v-loading="loading" :data="data" size="small" border style="width: 100%;" @expand-change="rowExpand">
<el-table-column type="expand" prop="">
<template slot-scope="">
<el-table :data="orderDetailData">
<el-table-column label="訂單編號" prop="orderId"/>
<el-table-column label="商品名稱" prop="skuName"/>
<el-table-column label="購買數量" prop="purchaseNum"/>
<el-table-column label="價格" prop="skuPrice"/>
<el-table-column label="商品編碼" prop="venderSku"/>
<el-table-column label="單品優惠" prop="discount"/>
</el-table>
</template>
</el-table-column>
<el-table-column prop="orderId" label="訂單編號" align="left" width="120"/>
<el-table-column prop="venderId" label="商家ID" />
<el-table-column prop="orderTime" label="訂單時間" min-width="140"/>
<el-table-column prop="venderCode" label="客戶編碼" width="100"/>
<el-table-column prop="payType" label="付款方式"/>
<el-table-column prop="totalMoney" label="總金額"/>
<el-table-column prop="discount" label="優惠金額"/>
<el-table-column prop="payMoney" label="支付金額"/>
<el-table-column prop="companyName" label="買家公司名稱" width="120"/>
<el-table-column prop="pickName" label="收貨人"/>
<el-table-column prop="pickAddress" label="收貨地址" width="200"/>
<el-table-column prop="pickPhone" label="收貨人電話" width="100"/>
<el-table-column prop="orderState" label="訂單狀態"/>
<el-table-column prop="orderState" label="平臺優惠"/>
<el-table-column prop="remark" label="備註"/>
<el-table-column prop="freight" label="運費" width="60"/>
<el-table-column label="操做" width="150px" align="center">
<template slot-scope="scope">
<!-- <el-button slot="reference" type="primary" size="mini" @click="showDetail">訂單詳情</el-button> -->
<edit v-if="checkPermission(['ADMIN'])" :data="scope.row" :sup_this="sup_this"/>
<el-popover
v-if="checkPermission(['ADMIN'])"
:ref="scope.row.orderId"
placement="top"
width="180">
<p>肯定刪除本條數據嗎？</p>
<div style="text-align: right; margin: 0">
<el-button size="mini" type="text" @click="$refs[scope.row.orderId].doClose()">取消</el-button>
<el-button :loading="delLoading" type="primary" size="mini" @click="subDelete(scope.row.orderId)">肯定</el-button>
</div>
<el-button slot="reference" type="danger" size="mini">刪除</el-button>
</el-popover>
</template>
</el-table-column>
</el-table>
<!--分頁組件-->
<el-pagination
:total="total"
style="margin-top: 8px;"
layout="total, prev, pager, next, sizes"
@size-change="sizeChange"
@current-change="pageChange"/>
</div>
</template>
<script>
import checkPermission from '@/utils/permission'
import initData from '@/mixins/initData'
import { parseTime } from '@/utils/index'
import eHeader from './module/header'
import { del } from '@/api/ordersMan'
import edit from './module/edit'
export default {
components: { eHeader, edit },
mixins: [initData],
data() {
return {
// delLoading: false, sup_this: this, orderDetailData: [{ orderId: '11111', skuName: 'ddddddd' }, { orderId: '22222', skuName: 'ffffffff' }]
delLoading: false, sup_this: this, orderDetailData: null
}
},
created() {
this.$nextTick(() => {
this.init()
})
},
methods: {
parseTime,
checkPermission,
beforeInit() {
this.url = 'api/orders'
const sort = 'orderId,desc'
this.params = { page: this.page, size: this.size, sort: sort }
const query = this.query
const type = query.type
const value = query.value
if (type && value) { this.params[type] = value }
return true
},
subDelete(orderId) {
this.delLoading = true
del(orderId).then(res => {
this.delLoading = false
this.$refs[orderId].doClose()
this.init()
this.$notify({
title: '刪除成功',
type: 'success',
duration: 2500
})
}).catch(err => {
this.delLoading = false
this.$refs[orderId].doClose()
console.log(err.response.data.message)
})
},
rowExpand(row, expandeRows) {
console.log('點開了' + row.orderId)
console.log(row.orderDetails)
const _this = this
_this.orderDetailData = row.orderDetails
}
}
}
</script>
<style scoped>
.demo-table-expand {
font-size: 0;
}
.demo-table-expand label {
width: 90px;
color: #99a9bf;
}
.demo-table-expand .el-form-item {
margin-right: 0;
margin-bottom: 0;
width: 50%;
}
</style>
坑
其實不能算作坑，只是本身對於VUE不熟悉本身坑了本身java
data() {
return {
// delLoading: false, sup_this: this, orderDetailData: [{ orderId: '11111', skuName: 'ddddddd' }, { orderId: '22222', skuName: 'ffffffff' }]
delLoading: false, sup_this: this, orderDetailData: null
}
},
data中須要給orderDetailData給個null值，那麼後面的rowExpand方法中再給_this.orderDetailData 賦值界面上的數據纔會從新渲染。這個問題在官方文檔中有說明： json